Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2015 / V.27,no.4,Dec Title Charge Transfer Dye Probe for Thiol-containing Amino Acid Authors In Sub Shin, Seon Yeong Gwon1, Shinya Matsumoto and Sung Hoon Kim1 Institution/Affiliations Yokohama National University,1Kyungpook National University Pages/Total page pp.261 ~ 269 / 9 Language Korean Abstract Abstract: Two new D-π-A dyes were synthesized by the condensation reaction between active methyl and aromatic aldehyde and its biothiol sensing properties in DMSO/water were investigated by UV-vis spectroscopy. Upon addition of Hg2+, the solution of D-π-A dyes showed color change and the absorption band shows a formation of a dye-Hg2+ coordination complex. These dyes exhibited high selectivity for Hg2+ as compared with other cations. The dye-Hg2+ could be recovered by adding glutathion(GSH). The absorption intensity of dye-Hg2+ increased only by the addition of glutathione(GSH). The competition experiments revealed that no obvious interference was observed by performing the titration with the mixture of glutathione(GSH) and other amino acids. The results indicated that these D-π-A dyes were highly selective for glutathione(GSH) detection. Keywords Keywords: cysteine(Cys), glutathione(GSH), homocysteine(Hcy), biothiol sensing, D-π-A dyes Download   Reference http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2015_v27n4_261&ordernum=3